The 4A-FE differs through the 4A-GE when it comes to functionality and power. While both hold the exact same displacement and therefore are DOHC, they have been optimized for various uses. The very first evident change are classified as the valves, the engine's ingestion and exhaust valves have been positioned 22.3° apart (compared to fifty° during the G-Engines). The 2nd is usually that it employed Toyota's Higher-Mecha Twin Cam procedure,[18] the place both of those camshafts are geared together with the intake camshaft remaining driven off with the exhaust camshaft by way of scissor gears (the two camshafts within the G-Engine are rotated by the timing belt alternatively).[twenty] A few of the significantly less directly obvious differences ended up badly shaped ports in the sooner versions, a gradual burning combustion chamber with greatly shrouded valves, considerably less aggressive camshaft profiles, a cast crankshaft (rather than a forged crankshaft inside the 4A-GE), ports of a little cross sectional location, an exceedingly restrictive intake manifold with lengthy runners joined to a small displacement plenum together with other alterations.
because I have a bigport I stuffed within the Areas to seal the ingestion flange. Just means I've a action on the inside.
Hasselgren includes a billet oil pan accessible for the 4AGE, with enhanced performance and toughness above the TRD casting.
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As soon as the first harness is finish Ii will check into looking at how It's going to be to construct one from scratch using junkyard sourced plugs and an AE102 harness(also might be including automobiles to get the plugs from, and also pieces)
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I also swapped the oil tension sender from my 7AFE to your 4AGE BT, it's a bolt in so you can use the connector from your previous harness.
Re: ITB Conversion on sixteen valve 4AGE There are plenty of differant approaches to go about this, which way you desire is nearly both you and your spending plan.
I tried tuning it with velocity density, immediately gave up and went for alpha-n which happens to be how Every person tunes these things (While Should you have The cash and dyno time, you are able to do a combination of pace density and alpha-n)
Re: ITB Conversion on sixteen valve 4AGE On my inventory bigport AW11 a leaking exhaust manifold gasket brought on the O2 sensor to read lean and it pumped fuel to the motor. Gas financial state plummeted till I sorted it out.
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